Table 2.

Clinical information of BAVM patients

Patients	Gender	Age (years)	Clinical symptoms	Diagnosis and location	Spetzler-Martin
1	Female	51	Sudden headache, nausea, and vomiting for 2 days	Left cerebellum AVM with bleeding	II
2	Male	33	Twitch repeatedly for 1 year	Right temporal AVM	II
3	Female	49	Headache and dizzy repeatedly for 2 years	Left parieto-occipital AVM	III
4	Male	41	Sudden headache for 3 days	Left occipital AVM with bleeding	II
5	Male	29	Twitch repeatedly for 2 months	Right temporal pole AVM	III
6	Female	19	Sudden headache for 1 days	Right frontal AVM with bleeding	III
7	Male	38	Recurrent seizures for 3 years	Left temporal AVM	I
8	Male	34	Headache for 6 years	Left occipital AVM	IV
9	Male	24	Sudden headache for 7 days	Right frontal AVM with bleeding	II
10	Female	42	Headache for 3 months	Left frontal AVM	II
11	Female	26	Sudden headache for 1 day	Right temporal AVM with bleeding	III
12	Male	55	Headache and dizzy for 6 months	Right frontal AVM	IV
13	Male	27	Headache for 5 days	Left cerebellum AVM with bleeding	II
14	Male	33	Sudden headache for 10 days	Left occipital AVM with bleeding	III
15	Female	25	No symptom	Right frontal AVM	III
16	Male	44	Recurrent seizures for 1 year	Left temporal AVM	I
17	Male	39	Sudden headache for 2 days	Right parietal AVM with bleeding	I
18	Female	50	Sudden headache for 5 days	Left temporal AVM with bleeding	III
19	Female	37	Headache for 2 months	Right cerebellum AVM	II
20	Male	40	Recurrent seizures for three times	Right frontal AVM	II

AVM: Arteriovenous malformation; BAVM: Brain arteriovenous malformation.